Just Know is a smart flash-card app designed to help new musicstudents learn musical notes. It tracks your answers and responsetimes. Notes that you know well appear less often, and those thatyou don’t appear more often. This makes efficient use of your studytime. Different note sets are selected by choosing an instrumentfrom the toolbar. The navigation drawer allows you to selectbetween Notes Quiz and Notes Review. Notes Review allows you toswipe left and right through the notes of the selected instrument.Notes Quiz tests your knowledge.